pete williams joins us now from washington. pete, if this problem exists and it's harder to find, why? what's going on here? why is it more difficult to find these people? >> that was the interesting thing about the hearing today, tamarin. what they say is that the terror groups are moving away from the big complex, long-term planning operations that resulted in 9/11 with a lot of people. they're moving to quicker operations that are less complicated, fewer people involved, a shorter planning period. and, therefore, there's a smaller window during which the u.s. has the ability to detect and disrupt them. here's the way secretary napolitano described the issue. >> homeland security, in fact, begins with home town security. so we're working with a variety of recommendations made by a working group of our homeland security advisory council to aid local law enforcement in this effort. >> and director muller, bob muller, the director of the fbi, said there is a bright spot here, that more islamic organizations in the u.s. are willi